Hearthstone Catalyst replacement CAS1, HER4, MCR2 part number 90-75310

  

This Hearthstone Catalyst replacement part number 90-75310 is the perfect addition to your fireplace and stove. It is a high-quality catalyst that will help increase the efficiency of your heating system. The unit type is a unit and the number in pack is one, making it easy to use and replace.

The part is specifically designed for the HER4 and MCR2 models and is a great fit for your heating system. The catalyst is made from durable materials that will ensure long-lasting performance. Upgrade your fireplace and stove with this reliable replacement part.